 /*******************************************************************************
  * Copyright (c) 2006, 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/

 package org.eclipse.ui.ide.undo;

 import org.eclipse.core.resources.IMarker;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IAdaptable;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.NullProgressMonitor;
 import org.eclipse.ui.internal.ide.undo.UndoMessages;

 /**
  * A DeleteMarkersOperation represents an undoable operation for deleting one or
  * more markers in the workspace. Clients may call the public API from a
  * background thread.
  *
  * This class is intended to be instantiated and used by clients. It is not
  * intended to be subclassed by clients.
  *
  * @since 3.3
  *
  */
 public class DeleteMarkersOperation extends AbstractMarkersOperation {

     /**
      * Create an undoable operation that can delete the specified markers.
      *
      * @param markers
      * the markers to be deleted
      * @param name
      * the name used to describe the operation that deletes the
      * markers
      */
     public DeleteMarkersOperation(IMarker[] markers, String name) {
         super(markers, null, null, name);
     }

     /*
      * (non-Javadoc)
      *
      * Map execution to marker deletion.
      *
      * @see org.eclipse.ui.ide.undo.AbstractWorkspaceOperation#doExecute(org.eclipse.core.runtime.IProgressMonitor,
      * org.eclipse.core.runtime.IAdaptable)
      */
     protected void doExecute(IProgressMonitor monitor, IAdaptable info)
             throws CoreException {
         if (monitor == null) {
             monitor = new NullProgressMonitor();
         }
         monitor.beginTask("", 100); //$NON-NLS-1$
 monitor.setTaskName(UndoMessages.MarkerOperation_DeleteProgress);
         deleteMarkers(100, monitor);
         monitor.done();
     }

     /*
      * (non-Javadoc)
      *
      * Map undo to marker creation.
      *
      * @see org.eclipse.ui.ide.undo.AbstractWorkspaceOperation#doUndo(org.eclipse.core.runtime.IProgressMonitor,
      * org.eclipse.core.runtime.IAdaptable)
      */
     protected void doUndo(IProgressMonitor monitor, IAdaptable info)
             throws CoreException {
         if (monitor == null) {
             monitor = new NullProgressMonitor();
         }
         monitor.beginTask("", 100); //$NON-NLS-1$
 monitor.setTaskName(UndoMessages.MarkerOperation_CreateProgress);
         createMarkers(100, monitor);
         monitor.done();
     }

     /*
      * (non-Javadoc)
      *
      * Map the undo status to marker creation status.
      *
      * @see org.eclipse.ui.ide.undo.AbstractMarkersOperation#getBasicUndoStatus()
      */
     protected IStatus getBasicUndoStatus() {
         return getMarkerCreationStatus();
     }

     /*
      * (non-Javadoc)
      *
      * Map the redo status to marker deletion status.
      *
      * @see org.eclipse.ui.ide.undo.AbstractMarkersOperation#getBasicRedoStatus()
      */
     protected IStatus getBasicRedoStatus() {
         return getMarkerDeletionStatus();
     }
 }

